WO2010104299A3 - An apparatus for processing an audio signal and method thereof - Google Patents

An apparatus for processing an audio signal and method thereof Download PDF

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Publication number
WO2010104299A3
WO2010104299A3 PCT/KR2010/001429 KR2010001429W WO2010104299A3 WO 2010104299 A3 WO2010104299 A3 WO 2010104299A3 KR 2010001429 W KR2010001429 W KR 2010001429W WO 2010104299 A3 WO2010104299 A3 WO 2010104299A3
Authority
WO
WIPO (PCT)
Prior art keywords
gain factor
linear gain
audio signal
processing
input
Prior art date
Application number
PCT/KR2010/001429
Other languages
French (fr)
Other versions
WO2010104299A2 (en
Inventor
Hyen-O Oh
Alex Favrot
Christof Faller
Myung Hoon Lee
Jong Ha Moon
Original Assignee
Lg Electronics Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lg Electronics Inc. filed Critical Lg Electronics Inc.
Publication of WO2010104299A2 publication Critical patent/WO2010104299A2/en
Publication of WO2010104299A3 publication Critical patent/WO2010104299A3/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/005—Combinations of two or more types of control, e.g. gain control and tone control of digital or coded signals
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/02—Remote control of amplification, tone or bandwidth
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/001—Digital control of analog signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/16—Automatic control
    • H03G5/165—Equalizers; Volume or gain control in limited frequency bands
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers

Landscapes

  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

A method of processing an audio signal is disclosed. The present invention includes receiving, by an audio processing apparatus, an input signal; receiving user gain input; generating a linear gain factor and a non-linear gain factor using the user gain input; modifying the non-linear gain factor using absolute threshold of hearing and power of the input signal to generate a modified non-linear gain factor; and, applying the linear gain factor and the modified non-linear gain factor to the audio signal.
PCT/KR2010/001429 2009-03-08 2010-03-08 An apparatus for processing an audio signal and method thereof WO2010104299A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US15838809P 2009-03-08 2009-03-08
US61/158,388 2009-03-08
US16445909P 2009-03-29 2009-03-29
US61/164,459 2009-03-29

Publications (2)

Publication Number Publication Date
WO2010104299A2 WO2010104299A2 (en) 2010-09-16
WO2010104299A3 true WO2010104299A3 (en) 2010-11-25

Family

ID=42167354

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/KR2010/001430 WO2010104300A2 (en) 2009-03-08 2010-03-08 An apparatus for processing an audio signal and method thereof
PCT/KR2010/001429 WO2010104299A2 (en) 2009-03-08 2010-03-08 An apparatus for processing an audio signal and method thereof

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/KR2010/001430 WO2010104300A2 (en) 2009-03-08 2010-03-08 An apparatus for processing an audio signal and method thereof

Country Status (3)

Country Link
US (2) US8538043B2 (en)
EP (2) EP2228902B1 (en)
WO (2) WO2010104300A2 (en)

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US8077873B2 (en) 2009-05-14 2011-12-13 Harman International Industries, Incorporated System for active noise control with adaptive speaker selection
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US8867749B2 (en) * 2011-04-18 2014-10-21 Paul Blair McGowan Acoustic spatial projector
US9112466B1 (en) * 2012-06-11 2015-08-18 Google Inc. Method for controlling volume using a rotating knob interface
US9020160B2 (en) 2012-11-02 2015-04-28 Bose Corporation Reducing occlusion effect in ANR headphones
US8798283B2 (en) 2012-11-02 2014-08-05 Bose Corporation Providing ambient naturalness in ANR headphones
US9607624B2 (en) 2013-03-29 2017-03-28 Apple Inc. Metadata driven dynamic range control
US9240763B2 (en) 2013-11-25 2016-01-19 Apple Inc. Loudness normalization based on user feedback
US9276544B2 (en) 2013-12-10 2016-03-01 Apple Inc. Dynamic range control gain encoding
US9608588B2 (en) 2014-01-22 2017-03-28 Apple Inc. Dynamic range control with large look-ahead
US10109288B2 (en) 2015-05-27 2018-10-23 Apple Inc. Dynamic range and peak control in audio using nonlinear filters
US9587955B1 (en) 2015-10-12 2017-03-07 International Business Machines Corporation Adaptive audio guidance navigation
EP3566229B1 (en) * 2017-01-23 2020-11-25 Huawei Technologies Co., Ltd. An apparatus and method for enhancing a wanted component in a signal
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Also Published As

Publication number Publication date
EP2229007A1 (en) 2010-09-15
WO2010104299A2 (en) 2010-09-16
WO2010104300A3 (en) 2010-11-25
WO2010104300A2 (en) 2010-09-16
US20100310085A1 (en) 2010-12-09
EP2229007B1 (en) 2013-12-25
EP2228902A1 (en) 2010-09-15
US8538043B2 (en) 2013-09-17
EP2228902B1 (en) 2017-09-27
US8515087B2 (en) 2013-08-20
US20100296669A1 (en) 2010-11-25

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